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Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.
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Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o
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Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?
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Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .
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Cho biết các năng lượng liên kết sau đây: EC-C = 343,4 kJ/mol, EC=C = 597,7 kJ/mol; EC-H = 418,4 kJ/...
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